Safety Check

Ensure your heating, air conditioning, and water heater is running safely and efficiently with a system check from Guthrie & Sons Heating, Air & Solar. For a limited time, we are offering complimentary system checks.

Safety Check

Ensure your heating, cooling, and water heater system is running safely and efficiently.

Benefits of Safety Checks

Mechanical systems powered by natural gas including your heater, air conditioner, and water heater involve combustion of fuel, heat and oxygen to properly operate. Because your system relies on combustion to generate energy, it is crucial to inspect the components to ensure a smooth and safe operation. In addition, safety checks on your HVAC system and water heater help to:

Ensure your system is running efficiently
Prevent costly repairs
Extend the lifespan of your system
Provide peace of mind
And more!

What is Included with a Safety Check

When you schedule an appointment for a safety check, our team will do an inspection of your heater, air conditioner and water heater for specific components that may affect the safety of its operation. View the lists below for full details of what’s included in each system check.

HEATING

FURNACE OR AIR HANDLER

SAFETY CHECK INCLUDES

Inspect air cleaner
Inspect U.V. bulbs (if applicable)
Inspect blower motor, wheel & housing
Check burners
Check ignition system
Check flame sensor
Test for carbon monoxide leaks
Test door switch
Inspect all electrical connections
Check thermostat operation
Inspect flue pipe
Test blower motor
Visual inspection of ductwork
Test sequence of operation
Check and secure all panels
Test inducer motor
Check combustion air vents high & low
Visual inspection of heat exchanger
Ensure furnace is operating safely

COOLING

CONDENSER OR HEAT PUMP

SAFETY CHECK INCLUDES

Inspect air cleaner
Inspect filter
Inspect U.V. bulbs (if applicable)
Check drain lines
Check condensate pump
Visual inspection of ductwork
Check thermostat operation
Check condition of line set where exposed
Inspect outdoor fan blades
Test outdoor fan motor
Test compressor
Check refrigerant charge

WATER HEATER

TANKED SYSTEMS

SAFETY CHECK INCLUDES

Perform visual inspection for leaks, damage or corrosion
Test the pressure relief valve
Check for any cracks or standing water in the secondary drain pan
Ensure earthquake straps are installed and secured to the building
Check hot water tank is installed level
Check for hidden water leaks that are not easily visible
Check if tank should be flushed
Check the gas line connections for gas leaks
Examine the venting system
Check discharge temperature of water is correct
Check for code compliance

Difference Between a Safety Check and a Maintenance

With a safety check, we do an inspection of your heating, air conditioning, and water heater to check and ensure specific components of your system are running safely. With a safety check, if we come across an issue with one of the components, we will let you know and provide you with a solution to address the issue. With a maintenance, we do a thorough evaluation of your heating, air conditioning, and water heater and perform extra steps to ensure your system is running at peak performance including: changing your filter, replacing U.V. bulbs, cleaning your unit, tightening wires, and more! Learn more about what is included in a maintenance here.

Get a Safety Check today with Guthrie & Sons

If you have concerns about the safety of your heating, air conditioning, and water heater, we’re here to help. To schedule an appointment, you can book online or give our office a call at (619) 269-3013.

PROMOTIONS

CURRENT OFFERS

REPAIR

Free Diagnostic w/ a Repair

Your diagnostic service call fee will be waived if you proceed with a repair. Cannot combine with other offers. Restrictions apply. See dealer for details. Offer expires 6/30/25.

MAINTENANCE

$129 A/C Tune Up

Valid on a central heating or air conditioning system. Price is per unit. Unit must be operating at time of service. Cannot combine with other offers. Restrictions apply. See dealer for details. Offer expires 6/30/25.

INSTALLATION

Free Estimate on a New Installation or System Replacement

Valid for an estimate on a new heating, air, or solar installation or replacement. Restrictions apply. See dealer for details.

The Guthrie Way

Why Choose Us

As a family-owned company with our name on the line, we take pride in our work.

Family-Owned

Guthrie & Sons is family-owned and operated for two generations. We take pride in treating each customer with the dedication, quality, and care you deserve.

5-Star Service

We take pride in setting the gold standard for HVAC service. Our dedicated team of experts is committed to delivering nothing less than 5-star quality service in every aspect of our work.

Expertise

With decades of experience in the HVAC industry, our team of seasoned professionals know heating and cooling inside and out. Our expertise shines through in every installation, repair, and maintenance service we provide, ensuring your home stays comfortably climate-controlled.

Honest Pricing

As a family-owned company, we aim to keep costs as low as possible for our customers. When you partner with us, rest assured you will receive expert service at an affordable, competitive price.

No Upsells

We believe in straightforward, no-nonsense HVAC service. When you choose us, you won't encounter any upsells or hidden fees. We're committed to providing you with the services you need, without any unnecessary extras. Trust us for HVAC solutions that prioritize your comfort and your budget.

OUR REVIEWS

FROM OUR CUSTOMERS

Don’t just take our word for it. See what over 850+ customers have to say about working with us!

Bennie Beans

15:41 12 Jun 25

Mario was knowledgeable and courteous. He made sure our system would be sized right and that our existing ductwork was able to support the new system. The install team were prompt and efficient. They installed drop cloths and cleaned up inside and out after the job. So far I’ve been very happy with the work Guthrie and Sons have done for us.

Chris Toogood

21:52 06 Jun 25

Great local family business. And you actually get a live person when you call... And the technician was great and they come out quickly. No up selling too. He gave me two different price options on fixing my problem... band aid cheaper way or replacement. Great service.

Nick Schoch

17:58 27 May 25

Jonathan recently inspected the HVAC systems at both my front and guest houses, and I couldn’t be more impressed with his service. He was thorough in his assessment, clearly identifying areas of concern and explaining the recommended repairs in a way that was easy to understand. What stood out most was his honesty and patience—he took the time to answer all my questions without rushing, and I genuinely felt he had my best interest in mind. If you're looking for someone who is knowledgeable, professional, and respectful of your time and property, I highly recommend asking for Jonathan.

Neil Domingo

17:24 15 May 25

If you’re dealing with an AC issue, Mario is definitely one of the best! He quickly diagnosed the problem, worked efficiently, and provided a thorough solution. His expertise and professionalism were clear throughout the entire process. Highly recommend Mario for anyone looking to resolve their AC issues with a reliable and skilled technician.

Phil Lane

17:18 10 May 25

Guthrie and Sons has provided great service. There are many HVAC companies in San Diego to choose from. They provided a very reasonable estimate for replacing our two AC systems. Once we said yes installation happened within days. It was a quality install. They answer the phone quickly when I've had questions. Happy to refer them to others.

Dianne Haase

20:57 02 May 25

Great customer service, technicians always on time and friendly. I’ve had my new hybrid heat pump for a few years and Guthrie & Sons are very proactive making sure everything is running smoothly. Very happy in my decision to use them!

Andrea Kossoudji

01:11 30 Apr 25

Great service!! Jonathan was patient, kind, knowledgeable and extremely professional! I love Guthrie & Sons’ reminder system, notification of the technician enroute, the easy invoice system and immediate emailing of the findings, including detailed photographs of the work completed!! Highly recommend!

james beedon

20:47 23 Apr 25

Last summer my air conditioner couldn't cool the house in the hottest period of summer. The HVAC team I was working with came in and said the coils were leaking, the unit was 20 years old. I requested quotes from 5 different companies, and the variation of prices was huge. I went with Guthrie and Sons for these reasons:
1. Local Company
2. Family Owned
3. Great presentation, no pressure
4. Good products
5. Competitive pricing
Just installed yesterday, so jury is still out on the system, but installation was thorough and great communication so far!

Darius Degher

21:45 22 Apr 25

Carson and Michael were brilliant. The heat pump installation went smoothly, and they are really pleasant and trustworthy fellows. The day after it was installed, I had a plumber at my house. He looked at their work and was impressed. He said it was much cleaner than the way HVAC people usually do it.

Lito Ricasata

19:03 08 Apr 25

First time prospective client of Guthrie and Sons. Very responsive staff in providing updates on my calls. Mario F. came over to check out my existing cooling and heating system and is very thorough and professional in providing necessary information related to repair/upgrades. Pending his quote, my experience with Guthrie and Sons is top notch and most highly recommended.

Updated review: Kareen, Daniel and Michael worked on the AC replacement, relocation of furnace to the attic and replacement of ductwork. Very professional and knowledgeable team in my opinion. Completed the work in a timely and very satisfactory manner.

Michael Myers

00:19 25 Mar 25

My experience with Guthrie & Sons has been excellent, and I am pleased to write a very favorable review about it. They replaced three air conditioners and three propane furnaces with new equipment that utilizes heat pump technology. I had met with other companies and I was close to coming to a conclusion, when a friend recommended Guthrie & Sons. He told me that they are hyper focused on customer service from beginning to end.

Their customer service started with the on line completion of a basic information form. Shortly after submitting that form, I heard from Zach who scheduled an appointment at my home.

I had already met with three other HVAC contractors, and for that reason, I had some basic information about the systems available and how heat pumps work and whether propane furnaces should also be installed. I signed a contract on a Friday. By Wednesday of the next week they had completed the installation. Wow.

The installation of one of the furnaces in the attic caused minor damage to the drywall. THEY BROUGHT IT TO MY ATTENTION and told me a drywall contractor would be in touch regarding its repair. Two days later it was repaired.

Since installation, the equipment (heat pumps from Bosch) has been working great and I am optimistic about the future. Meanwhile, their pricing, warranty and terms are far superior to their competitors.

Since this is an unusually long review and so favorable, let me add this: This is my honest, uncompensated opinion. I have no relationship with anyone at Guthrie & Sons other than the contract we executed.

Tom H

15:21 20 Mar 25

We recently had Guthrie and Sons install a Mini-Split system in our home. The entire process was handled professionally with no issues occurring at any time. The estimator (Vlad) went through options with us but let us evaluate the best solution for us with zero pressure. The installation team (Matthew and Aaron) showed up on time, reviewed the scope of the job, made sure they understood what we wanted, and then proceeded to complete the installation exactly as discussed. They asked for my input as needed so there were no surprises when the job was completed.
They respected my property and made sure everything was left at least as clean was when they arrived. The job was completed on time and as promised and they reviewed the details of the system and its use clearly. I would definitely have Guthrie and Sons do other electrical/HVAC work should the need arise.

Mike Macias

19:43 19 Mar 25

I have been in the construction industry in San Diego for over 50 years. I owned my own contracting company for over 40 years. I have seen all levels of customer service in my years. The level of customer service from Guthrie and Son’s is among the best I’ve ever seen and received. Every time I hear anyone asking for a referral for HVAC work I immediately give them your number. When I recommend a company I in essence am putting my name and reputation on the line. I refer them with 100% confidence in the service they will receive. Thank you very much for your legendary service.

Scott Sypkens

23:32 11 Mar 25

We first hired Guthrie and Sons to replace a furnace after comparing proposals from several heating and air companies. They’ve since been back for annual check ups, and today Kareen came to diagnose and resolve an issue with our mini-splits. My experience each time, including today, is that they hire friendly, knowledgeable people who do good work. They’ve never tried to upsell or do anything unnecessary, which is the way it should be. I’d recommend them to anyone who asks.

Marilyn Rivas

20:07 09 Mar 25

They always come out quickly. They are so polite and careful.

Steven Wheeler

19:28 07 Mar 25

Good technician did everything right yet our heater still not working
Jonathan gave us the likeliest problems so we’ll have to get it fixed

Dmitriy

04:01 07 Mar 25

My AC was not working for seven months. Three other companies tried to fix it with no success. Don’t make the same mistake I did—go straight to Guthrie & Sons! They are absolutely worth every penny.